Today we're choosing a load and we're going to select our bullet, powder, brass, and primer. And we're not just choosing a load for accuracy but a lot that w... Notes from the Lab: .257 Roberts (using Sierra bullets) N.H. “Ned” Roberts developed the .257 Roberts during the 1920s by necking the 7mm Mauser (aka 7x57) case to accept .257-inch bullets and by changing the shoulder angle from 20 ... data is loaded to +P pressures and should only be used in modern actions intended for the increased pressures..257 Roberts (Hodgdon CFE 223 Data) reloading data with 6 loads. Using bullets from Hornady SP, Hornady HP, Barnes TTSX BT. Powders include Hodgdon .257 Roberts (Cast Bullet Loads) reloading data with 9 loads. Using bullets from Lyman 257463, Lyman 257464, Lyman 257235. Powders include Alliant, IMR Overview. Nosler 257 Roberts +P Rifle Reloading Brass - 50 Count. Nosler Premium Brass is designed for those who want to take finding the perfect load into their own hands. Fully prepped and ready to load, Nosler's gone ahead and done the meticulous case prep work for you. Each piece is chamfered, deburred, checked for proper alignment, sized ...Warning! Notes: case: Remington; bbl: 24"; pr: Remington 9 1/2; NEVER exceed loads listed. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts (IMR Data) reloading data with 11 loads. Using bullets from Sierra SP, Sierra Hollow Point Boat Tail. Powders include IMR.If we take the Roberts with a 100-grain bullet at 3,000 fps and zero the rifle for 200 yards, bullet drop at 300 yards is only 7.2 inches. Now load the same bullet weight in the .25-06 ….257 Roberts Handloads Standard Pressure reloading data with 40 loads. Using bullets from Hornady Spire Point, Berger HP, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Accurate, Ramshot, NormaDate: Feb 11 2014. N.H. "Ned" Roberts developed the .257 Roberts cartridge during the 1920s by necking the 7mm Mauser case to accept .257-inch bullets, and by changing the shoulder angle from 20 to 15 degrees. Roberts was a well-known experimenter and gun writer, and his cartridge became a popular wildcat among custom rifle builders and hunters.The .257 Roberts Improved. The two most popular "Improved" .257 Roberts cartridges are the Ackley and RCBS versions. They are quite similar except for the shoulder angle, which is 40 degrees for the Ackley version and 28 degrees for the RCBS version. The Hornady Handbook and Nosler Reloading Guide show maximum reloads for the .257 Improved ....257 Roberts Handloads +P Pressure reloading data with 31 loads. Using bullets from Hornady Spire Point, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Ramshot, Norma, AccurateReloading . John Barnsness , .257 Bore article. ... 250/3000 .257 roberts 25,06 and the .257 weatherby magnum. I have exchanged PMs with John , on the Roberts and the wetherby mag, on a few ocaisions. The data that intrests me in particular, is in The Roberts. (duh , I do call myself TJ Roberts).Wt. .257 Roberts (Using Nosler Bullets) reloading data with 150 loads. Using bullets from Nosler BT, or CT Ballistic Silvertip, Nosler BT, Partition Spitzer or E-Tip, Nosler Accubond, Nosler Solid Base Ballistic Tip (blue), Nosler, Nosler Partition Spitzer. Powders include Alliant, Accurate, IMR, Hodgdon, Vihtavuori, Ramshot, Winchester.Dec 27, 2020 ... There is a deal I can get on Hornady 75gr V-Max from a shop I use. Does anyone have any load data for it? Ramshot puts data for the 75gr Sierra ...The .257 Roberts was the premier combination varmint/deer cartridge until the .243 Winchester and .244 Remington were introduced in 1955. These cartridges were highly touted by Warren Page, the Shooting Editor at Field & Stream magazine, and appeared to be ballistically superior to the .257 Roberts.The .257 Roberts has (finally) been updated to piezoelectric pressure measurements, with standard pressure loads listed at 54,000 psi while +P loads are listed at 58,000 psi. The maximum loads in the accompanying data are almost all +P pressures. However, for handloaders wanting standard pressure data, starting and maximum loads should be ...257 Roberts +P with 100 gr HP. speer-ammo.com Alliant Reloder 23 Federal Federal 210 43.9 2767 48.8 C3064 Hodgdon H380 Winchester CCI 250 38.0 2566 42.0 2842 …Master Loader. Apr 6, 2006. 17,500. 4,699. Walt Berger used those bullets, in a .257 Roberts to take a HUGE red stag in New Zealand. I've used them on three mule deer, from my .25-06, with good results - but my load data won't help you at all.257 Roberts Load Data. Using Hornady reloading data with the 257 Roberts bullets creates a great round that is popular with hunters who like its low recoil rates. The .257 Roberts dates way back to around the 1920's but many still use it to this day. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet..257 Diameter Bullets 75 gr. HP 87 gr. SPT 90 gr. HPBT 100 gr. SPT 100 gr. SBT 117 gr. SBT 117 gr. SPT 120 gr. HPBT.264 Diameter Bullets 85 gr. HP 100 gr. HP 120 gr. SPT.257 Roberts in a Kimber 84M reloading data with 18 loads. Using bullets from Sierra HPBT, Barnes TSX boat-tail, Speer boat-tail softpoint, Nosler AccuBond, Hornady Spire Point, Sierra spitzer. ... Data was safe in test rifles and is intended for use only by competent persons experienced in proper and safe handloading techniques. …According to Philip B. Sharpe’s classic book Complete Guide to Handloading (Third Edition, Second Revision), listed the specs for the .257 Roberts were an 87-grain bullet at 3100 fps, a 100-grain bullet at 2800 fps and a 117-grain bullet at 2550 fps. The round nosed 117-grain bullet was a good choice for deer and similar-sized game, but …257 Roberts +P and H4350. Am going to try H4350 in my 257 Roberts as the powder should work better in the conditions I hunt (Alberta, Canada, where the temp during hunting season can be 10 above or 30 below). I have been using 115 gr Nosler BT with IMR 4350 and am getting great groups (44 grains, which is over max. does not …257 ROBERTS · 25-06 REMINGTON · 257 WEATHERBY MAGNUM · 6,5 JAPANESE ARISAKA · 6,5 CARCANO · 6,5x54 M-S · 260 REMINGTON · 6,5x55 SWE...Warning! Notes: .257 Roberts, Ruger M-77 long action 24-inch barrel; Remington cases, 186 grains; CCI No. 200 primers; Oehler M-31 Chronotach, Oehler M-50 photoelectric screens; velocity at 15 feet converted to MV; temperature 70 degrees; this rifle had a rather loose chamber and would handle more powder than most rifles with every bullet ...2,694. Remarks: .257 Roberts Ackley Improved (Using Nosler Bullets) reloading data with 135 loads. Using bullets from Nosler Ballistic Tip or CT Ballistic Silvertip , Nosler Ballistic Tip or CT Ballistic Silvertip, Nosler Ballistic Tip, E-Tip or Partition Spitzer, Nosler Accubond, Nosler Ballistic Tip, CT Ballistic Silvertip or Pa, Nosler ....257 Roberts Ackley Improved Data reloading data with 4 loads. Using bullets from Hornady V-Max, Barnes XLC, Nosler Ballistic Tip, Nosler Partition. Powders include Ramshot, Hodgdon, Accurate, AlliantOct 15, 2022 ... ... data, 2 or 3 online ballistic calculators for ballistic data. Do not modify any cartridge or firearm beyond what the manufacturer recommends ...Remarks: max load; COL: 2.775"; 45,000 cup. .257 Roberts reloading data with 91 loads. Using bullets from Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, Speer SPBT, Nosler Part. Powders include IMR.The 257 Improved is a fi ne performer, adding up to 100 fps velocity over its factory cousin. One of its advantages, Ackley noted, is the fact that 257 Roberts factory ammunition can be used in an improved rifl e if necessary. Other 25 caliber wildcats are not this fl exible. The 257 Improved is all that the 257 Roberts is—and a bit more..257 Roberts +P (Accurate Loading Guide #2) Warning! Notes: This data is only for use in modern firearms, approved by a gunsmith or manufacturer, for use with higher pressure +P ammo. The SAAMI Maximum Average Pressure for the .257 Roberts +P is 58,000 PSI. Factory +P ammo produced 51,000 PSI in our test barrel. These loads do not exceed that ...kleanbore 1. Oct 31, 2020. #1. Any long time shooters of the 257 Roberts, a question for you. What powders do you prefer for the heavier bullets, say 90gr-120gr I have IMR 4350, 4064, 3031, Varget , Reloader 15 and others. I know, what shoots good in your rifle may not in mine. Looking for a consensus on where to start.May 31, 2021 ... The Late .257 Roberts ... Hopeful Ballistics•1.5K views · 10:53 · Go to ... 257 Roberts varmint load Satterlee ladder test - Ruger M77 tang safety.According to Philip B. Sharpe’s classic book Complete Guide to Handloading (Third Edition, Second Revision), listed the specs for the .257 Roberts were an 87-grain bullet at 3100 fps, a 100-grain bullet at 2800 fps and a 117-grain bullet at 2550 fps. The round nosed 117-grain bullet was a good choice for deer and similar-sized game, but …257 Roberts +P with 100 gr HP. speer-ammo.com Alliant Reloder 23 Federal Federal 210 43.9 2767 48.8 C3064 Hodgdon H380 Winchester CCI 250 38.0 2566 42.0 2842 Hodgdon H414 Winchester CCI 250 40.0 2657 44.0 2878 Hodgdon H4350 Winchester CCI 200 43.0 2795 47.0 C3055.257" 25 Spitzer BTSP Weight (grains) 120 Ballistic Coefficient 0.480 Sectional Density 0.260 COAL Tested 2.770" Speer Part No. 1410 Propellant Case Primer Weight (grains) Muzzle Velocity (feet/sec) Weight (grains) Alliant Power Pro 4000-MR Federal Federal 210 40.2 2589 44.7 Alliant Reloder 23 Federal Federal 210 41.2 2608 45.8 CJoin Date: March 2, 2010. Posts: 28. 257 Roberts Modern Data. I have asked similar before, but now I am about to load my test loads this weekend and hate going in blind. Here is the loading data from Hodgdon's website for my selected powder and bullet for .257Roberts. Notice that it is a conservative load meant to be safe for older Mausers.Utah. QuickLOAD agrees with the others that 45.5g is WAY over pressure for the standard 257 Roberts. With a 24" barrel and a COAL of 2.775" the estimated pressure is 67,220 psi with 3,081 fps estimated muzzle velocity. QuickLOAD predicts that 41.5g to be max with that combo (@ 2.775" COAL & 24" barrel) for 2,822 fps.Date: Feb 11 2014. N.H. "Ned" Roberts developed the .257 Roberts cartridge during the 1920s by necking the 7mm Mauser case to accept .257-inch bullets, and by changing the shoulder angle from 20 to 15 degrees. Roberts was a well-known experimenter and gun writer, and his cartridge became a popular wildcat among custom rifle builders and hunters..257 Roberts Loads reloading data with 7 loads. Using bullets from Sierra hollowpoint, Nosler Ballistic Tip, Hornady Spire Point, Nosler Partition, Barnes TSX. ... .257 Roberts Loads: Warning! Notes: Source: Handloader Issue #247 - June, 2007: Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet: Powder ....257 Roberts Improved Data reloading data with 40 loads. Using bullets from Hornady, Sierra HP, Rem. Power Lokt, Sierra, Hornady Spire Point, Hornady Round Nose, Barnes.Apr 30, 2012. #7. Quite surprised at the velocity you are getting. You are making a 257 Roberts into a 25-06. I own two, 257 roberts rifles. One is a 50's Mauser with 22" raised-solid barrel and super fancy. It shoots 100 grain Speer bullets @ 3030 fps with 41.5 gr. 4064. Used it for decades and it has worked well.Utah. QuickLOAD agrees with the others that 45.5g is WAY over pressure for the standard 257 Roberts. With a 24" barrel and a COAL of 2.775" the estimated pressure is 67,220 psi with 3,081 fps estimated muzzle velocity. QuickLOAD predicts that 41.5g to be max with that combo (@ 2.775" COAL & 24" barrel) for 2,822 fps.Reloading data for 257 Roberts. Bullet: Hornady SP 87 gr: Bullet weight: 5.6 g / 87 gr: B.C: 0.322: C.O.L: 70.0 mm / 2.756 # 2530: Gunpowder Charge Weight Velocity m/s Velocity fps; Norma 204: ... An introduction to reloading - Part 8 An introduction to reloading- Part 3 Calibers Show all Calibers ...Use TBBC and TBSS data ONLY for TBBC and TBSS bullets; maximum loads should be used with CAUTION. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts +P (Speer Reloading Manual #14) reloading data with 116 loads. Using bullets from Speer FNSP, Speer Spitz SP or TNT HP, Speer Spitz SP, HP or Spitz BTSP ....257 Roberts (Sierra Data - Edition V) Warning! Notes: firearm used: Winchester M70; bbl. length/twist: 22"/1x10"; cases; Winchester; trim-to-length: 2.223"; primers: Remington 9 1/2; loads less than minimum charges shown are not recommended; use maximum loads with caution: Be Alert: Publisher cannot be responsible for errors in published load ....257 Roberts Improved Data reloading data with 40 loads. Using bullets from Hornady, Sierra HP, Rem. Power Lokt, Sierra, Hornady Spire Point, Hornady Round Nose, Barnes.257 Roberts +P 117 gr SST® Superformance®. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Superformance ® uses progressive propellants that take your favorite V-MAX, ® NTX, ® SST, ® CX,™ and InterLock, ® bullets to levels of ...The .257 Roberts is a low recoiling, mild powered cartridge. In a short action, it has the potential for a suitable youth rifle but without care towards optimizing hand loads, can lack the power with many 117 to 120 grain loads to be of any great advantage over the more common .243..257 Roberts Handloads Standard Pressure reloading data with 40 loads. Using bullets from Hornady Spire Point, Berger HP, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Accurate, Ramshot, Norma.257 Roberts Improved Data reloading data with 40 loads. Using bullets from Hornady, Sierra HP, Rem. Power Lokt, Sierra, Hornady Spire Point, Hornady Round Nose, Barnes. Powders include Norma, Hodgdon, IMR, Alliant, Winchester ... .257 Roberts Improved Data: Warning! Notes: 28 degree; 22-inch sporter barrel; Oehler Model 10 chronograph …Load Data for .257 Roberts . Bullet: 80 gr TTSX BT (Barnes) Diameter: 0.257" Powder: H380 (Hodgdon) Starting Powder: 41.0 gr. Max Powder: 45.0 gr .Jan 1, 2023 ... It's time for me to fix a common flaw in my shooting technique and learn how to drive this rifle! GunBlue490, Sight-In Tips: ....257 Roberts (Barnes Reloading Manual #3) Warning! Notes: case: Remington; parent case: 7x57 Mauser; primer: Federal GM 210M; trim to: 2.223"; barrel: 24"; XLC Coated X-Bullet data cannot be used with other bullets, including non-coated X-Bullets; maximum loads should be used with caution - Always Start With Minimum Loads.257 Diameter Bullets 75 gr. HP 87 gr. SPT 90 gr. HPBT 100 gr. SPT 100 gr. SBT 117 gr. SBT 117 gr. SPT 120 gr. HPBT.264 Diameter Bullets 85 gr. HP 100 gr. HP 120 gr. SPTLoad Data. Nosler Load Data; Reloading Glossary; Dealer Locator. Sign In / Register. Search. Search. Search. Advanced Search. Sign In; Create an Account; My Cart 0. Home; Load Data ... 257 Roberts Ackley Improved. 25-06 Remington. 257 Weatherby Magnum. 25 Winchester Super Short Magnum (WSSM) 6.5mm Caliber / .264” Diameter. 6.5 ….257 Roberts (Hodgdon Data) reloading data with 122 loads. Using bullets from Hornady SP, Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, Speer SPBT, …257 Roberts Load Data. Using Hornady reloading data with the 257 Roberts bullets creates a great round that is popular with hunters who like its low recoil rates. The .257 Roberts dates way back to around the 1920's but many still use it to this day. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet.By 2050, 66% of people will live in urban areas. Smarter data-driven urban planning will help make that possible. In the middle of the 20th century, a war waged for the soul of New...Hybrid 100-V gives the highest velocities in the Hodgdon manual. Rifles chambered for the 257 Roberts can vary a great deal. I had a 1976 vintage Ruger 77 tang safety Roberts with a sloppy chamber and a very long throat. It would take 43 grains of RL-15 to get a 100 grain bullet to 3,000 fps. 257 Rob +P - 100 grain Version 9.0 4" Lilja BARREL Twist 1-10" Expansion Tip® 0 .4 0 9 D u e to in te rn al co n stru ctio n d i˜ e re n ce s, alw ays b e g in w ith startin g lo ad s w h e n u sin g Exp an sio n Tip ® products. 81% 96% 72% 92% 81% 7% This data was developed to the 257 Roberts +P pressure level of 58,000 psi, and should only .257 Roberts (Hodgdon Data) reloading data with 122 loads. Using bullets from Hornady SP, Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, Speer SPBT, Nosler Part. Dec 9, 2015 ... ... 52:10. Go to channel .257 Roberts. Johnny's Reloading Bench•54K views · 32:53. Go to channel · Day 8. Johnny's Reloading Bench•14K views..257 ROBERTS ACKLEY IMPROVED - Published Manufacturer Loading Data. Recipe Type: Rifle. Bullet Weight: ALL. 75 gr. 80 gr. 85 gr. 90 gr. 100 gr. 115 gr. 120 gr. Powder: …257 Roberts +P 117 gr SST® Superformance®. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Superformance ® uses progressive propellants that take your favorite V-MAX, ® NTX, ® SST, ® CX,™ and InterLock, ® bullets to levels of ....257 Roberts Handloads Standard Pressure reloading data with 40 loads. Using bullets from Hornady Spire Point, Berger HP, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Accurate, Ramshot, Norma Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 49.9 Min 47.0: 923 864: 3028 2835 Sep 25, 2022 ... Hopeful Ballistics•8.5K views ... Checking Accuracy on 7x57 and 257 Roberts ... HOW TO RELOAD: RCBS Reloading Series - Part 1 #6.5 Creedmoor #6.5 ...257 Roberts Ackley Improved Load Data. 85 Grain. 100 Grain. 110 Grain. 115 Grain. 120 Grain. Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more. Experience superior quality and ...If you’ve ever had a debit card marked “nonreloadable,” you may wonder what that means. It simply means once the balance has been depleted, you can’t put more money on it. However,...In no event shall Nosler, Inc. be liable for any damages resulting from the use of this data.” All cartridge measurements are SAAMI maximum and due to variations from manufacturers actual measurements may vary * = Most accurate load tested 8 2 % 0 .3 2 9 8 4 % Cartridge C SHO D : Gr. W T CASE TYPE: Fed 210 257 Ack Imp - 85 grain Version 9.0 ...The .257 Roberts is a low recoiling, mild powered cartridge. In a short action, it has the potential for a suitable youth rifle but without care towards optimizing hand loads, can lack the power with many 117 to 120 grain loads to be …Never will understand folks fishing for reloading data on the Internet. There are so many documented loads out there, if you search even a little bit. ... Accuracy has come at the top of the loading charts for my 30.06 with 168g bullets and .257 Roberts with 75g bullets with 760. The sensitivity issue concerns me now that I read about it. I'll ...The .257 Roberts A.I. holds around 56.6 to 58.5 grains of water beneath a seated bullet, to the .257 Roberts 51.4 to 53.6 grains, all other factors remaining equal. Hornady’s 90-grain GMX paired best with. 43.5 grains of IMR-4064 at a velocity. of 3,302 fps. That three-shot, 100-yard group. measured .58-inch.257 is offered in a number of factory loads with 117-120 grain bullets. The 120 grain spitzer bullet as factory loaded by Federal claims a muzzle velocity (MV) ...May 20, 2023 ... I've shot one box and reloaded it with 100 gr spitzers. The two targets show 6 rounds of the factory ammo and 6 of the hand loads..257 Roberts Select Handloads reloading data with 6 loads. Using bullets from Hornady V-Max, Nosler Ballistic Tip, Sierra Spitzer, Barnes Triple-Shock, Remington Core-Lokt PSP, Remington Core-Lokt PSP Ultra Bonded. Powders include Hodgdon, Alliant.257 Roberts (Winchester Rifle Data) reloading data with 5 loads. Using bullets from Hornady SP, Hornady Hollow Point, Sierra Hollow Point Boat Tail, Speer Soft Point Boat Tail, Nosler Part. Powders include WinchesterThe .257 Roberts was the premier combination varmint/deer cartridge until the .243 Winchester and .244 Remington were introduced in 1955. These cartridges were highly touted by Warren Page, the Shooting Editor at Field & Stream magazine, and appeared to be ballistically superior to the .257 Roberts.The .257 Roberts was the premier combination varmint/deer cartridge until the .243 Winchester and .244 Remington were introduced in 1955. These cartridges were highly touted by Warren Page, the Shooting Editor at Field & Stream magazine, and appeared to be ballistically superior to the .257 Roberts.257 Roberts Load Data. Using Hornady reloading data with the 257 Roberts bullets creates a great round that is popular with hunters who like its low recoil rates. The .257 Roberts dates way back to around the 1920's but many still use it to this day. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet.Load Data for .257 Roberts . Bullet: 115 gr PART (NOS) Diameter: 0.257" Powder: StaBALL 6.5 (Winchester) Starting Powder: 38.5 gr. Max Powder: 43.0 gr .2,694. Remarks: .257 Roberts Ackley Improved (Using Nosler Bullets) reloading data with 135 loads. Using bullets from Nosler Ballistic Tip or CT Ballistic Silvertip , Nosler Ballistic Tip or CT Ballistic Silvertip, Nosler Ballistic Tip, E-Tip or Partition Spitzer, Nosler Accubond, Nosler Ballistic Tip, CT Ballistic Silvertip or Pa, Nosler ...Hybrid 100-V gives the highest velocities in the Hodgdon manual. Rifles chambered for the 257 Roberts can vary a great deal. I had a 1976 vintage Ruger 77 tang safety Roberts with a sloppy chamber and a very long throat. It would take 43 grains of RL-15 to get a 100 grain bullet to 3,000 fps..257 Roberts (Barnes Reloading Manual #3) Warning! Notes: case: Remington; parent case: 7x57 Mauser; primer: Federal GM 210M; trim to: 2.223"; barrel: 24"; XLC Coated X-Bullet data cannot be used with other bullets, including non-coated X-Bullets; maximum loads should be used with caution - Always Start With Minimum Loads 120gr. Spitzer. 2.750". 0.391. 0.260. This data was developed to the 257 Roberts +P pressure level of 58,000 psi, and should only be used in modern rearms and +P cases designed for these pressures. Remarks: max load; COL: 2.775"; 45,000 cup. .257 Roberts reloading data with 91 loads. Using bullets from Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, …
Oct 11, 2022 ... .257 Roberts is a good cartridge for deer. Had a friend kill 25 whitetails with the first and only rifle that he owned, a .257 Roberts.. Kubota z421 parts diagram
Remarks: COAL: 2.750 inches; maximum load. .257 Roberts (using Sierra bullets) reloading data with 391 loads. Using bullets from Sierra HP, Sierra SPT, Sierra SPT , Sierra HPBT, Sierra SPT, SBT or HPBT MatchKing, Sierra SPT or SBT, Sierra SPT or SBT , Sierra SPT or SBT . Powders include IMR, Hodgdon, Accurate, Vihtavuori, Ramshot, Alliant..257 Roberts +P (Accurate Loading Guide #2) Warning! Notes: This data is only for use in modern firearms, approved by a gunsmith or manufacturer, for use with higher pressure +P ammo. The SAAMI Maximum Average Pressure for the .257 Roberts +P is 58,000 PSI. Factory +P ammo produced 51,000 PSI in our test barrel. These loads do not exceed that ...Jan 1, 2023 ... It's time for me to fix a common flaw in my shooting technique and learn how to drive this rifle! GunBlue490, Sight-In Tips: ...Jan 12, 2020 ... The 950 JDJ FAT MAC (The World's Most Powerful Rifle!!!) · 1.4M views ; 35 Whelen loads for a tc compass · 3.5K views ; Well I found some reloade...60. Location. Fernandina Beach. That is interesting, and probably has something to do with the 257 Roberts being the only rifle cartridge that later had a +P designator. I currently don’t own a Roberts, but have loaded for 5 of them. All preferred H4350 and a good 100 gr bullet, such as the TSX or Nosler BT.The market for personal data is quietly infiltrating and affecting every aspect of our lives. When Judge Robert Bork was nominated for the Supreme Court in 1987, a reporter for the...According to Philip B. Sharpe’s classic book Complete Guide to Handloading (Third Edition, Second Revision), listed the specs for the .257 Roberts were an 87-grain bullet at 3100 fps, a 100-grain bullet at 2800 fps and a 117-grain bullet at 2550 fps. The round nosed 117-grain bullet was a good choice for deer and similar-sized game, but …Load data for 39 loads in caliber .257 Roberts with .257 | 100gr | Sierra SBT GameKing bullet including underlying parameters such as bullet length, ...Notes: velocities taken at five feet (Handloader Issue #11) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts Cast Bullet Data reloading data with 13 loads. Using bullets from Lyman No. 257464. Powders include Norma, IMR, Hodgdon./r/Reloading is a place for civilized discussions on the topic of Metallic and Shotshell reloading ... Best loads for 257 roberts with 117gr hornady sst h380 powder nosler +p brass and cci LR 200 primers . 10 years ago I made some loads that shot 1moa out of my M77 I lost the load data and am trying to make some loads like that again i have the ... Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 49.9 Min 47.0: 923 864: 3028 2835 The 6.5/257Roberts is the ballistic twin to the 6.5X57. Much the same way the 30/338 is to the 308 norma. Interstingly, I have a barrel from a Winchester featherwieght, that was rechambered to the Ackley version. I often thought of possibly of boring and rifling it to a 6.5mm,hence a 6.5X257 Roberts Ackley Improved.Notes: Loads fired from a 24-inch barreled Montana Rifle Company Woodland .257 Ackley Improved with a Leupold 3.5-10x, set on 10x. All loads shot with Winchester Large Rifle primers. All cases were fireformed from .257 Roberts brass, and all groups were fired at 100 yards, except where noted. (Handloader Issue #266 - June, 2010)The current SAAMI spec for the .257 Roberts Maximum Average Pressure (MAP) is 54,000 psi. Winchester introduced a +P version with a MAP of 58,000 psi in the mid-1980s. That’s still less than the typical 60,000 to 65,000 psi of comparable modern rifle cartridges. The .257 Roberts was pretty popular for a few years before and after World …Phone Orders & Customer Service. 1-800-272-3000 | Mon - Fri | 8am to 5pm CST. Pickup Room Hours. Mon - Fri | 8am to 5:30pm CST. Click here for holiday closures. Midsouth Shooters Supply's selection of reloading supplies includes 257 Roberts brass. Build your next load using our 257 Roberts rifle reloading brass..257 Roberts in a Kimber 84M reloading data with 18 loads. Using bullets from Sierra HPBT, Barnes TSX boat-tail, Speer boat-tail softpoint, Nosler AccuBond, Hornady Spire Point, Sierra spitzer. ... Data was safe in test rifles and is intended for use only by competent persons experienced in proper and safe handloading techniques. …2,694. Remarks: .257 Roberts Ackley Improved (Using Nosler Bullets) reloading data with 135 loads. Using bullets from Nosler Ballistic Tip or CT Ballistic Silvertip , Nosler Ballistic Tip or CT Ballistic Silvertip, Nosler Ballistic Tip, E-Tip or Partition Spitzer, Nosler Accubond, Nosler Ballistic Tip, CT Ballistic Silvertip or Pa, Nosler ....257 Roberts Handloads +P Pressure reloading data with 31 loads. Using bullets from Hornady Spire Point, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Ramshot, Norma, AccurateSafety Data Sheets; Shipping & Delivery; Warranty; Login 0. 0. My Cart. 0. 0. Search suggestions. Site Search. Cartridge Selector (Tap to open) ... .257 ROBERTS IMPROVED 40° RELOADING ESSENTIALS .257 ROBERTS RELOADING ESSENTIALS .257 WEATHERBY MAGNUM RELOADING ESSENTIALS .25 AUTO (25 ACP) …In this section you'll find anything related to reloading data, be it our Norma Reloading Manual, burning rate chart or how to store your powder. But first of all, we want to start with a warning! ... 257 ROBERTS. 25-06 REMINGTON. 257 WEATHERBY MAGNUM. 6,5 JAPANESE ARISAKA. 6,5 CARCANO. 6,5x54 M-S. 260 REMINGTON. 6,5x55 ….
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